87209703

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4157}}^1$

素因数の和:4213

約数の個数: 40

約数和(自身を含む): 152947872

約数和(自身を除く): 65738169

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 259, 333, 567, 777, 999, 2331, 2997, 4157, 6993, 12471, 20979, 29099, 37413, 87297, 112239, 153809, 261891, 336717, 461427, 785673, 1076663, 1384281, 2357019, 3229989, 4152843, 9689967, 12458529, 29069901, 87209703]

約数ペア:

[(1, 87209703), (3, 29069901), (7, 12458529), (9, 9689967), (21, 4152843), (27, 3229989), (37, 2357019), (63, 1384281), (81, 1076663), (111, 785673), (189, 461427), (259, 336717), (333, 261891), (567, 153809), (777, 112239), (999, 87297), (2331, 37413), (2997, 29099), (4157, 20979), (6993, 12471)]